Door-check hinge.



C. H. BUSCH. DOOR CHECK HINGE. APPLICATION FILED JULY 14. 1914.

Patented Apr. 6, 1915.

2 SHEEISSHEET 11 C. H. BUSCH.

DOOR'CHECK HINGE..

APPLICATION FILED JULY 14-. IBM.

Patented Apr. 6, 1915-.

2 SHEETS-SHEET 2.

15L\\ if ZIwucnloz wif'n cooen I,

2 is a rod 4 having helical projections 5 CIIARLES H. BUSCH, OF NEW YORK, N. Y.

IDGOB GHECK EINGE.

Application filed July 14, 181%.

To all whom it may concern v Be it known that 1, CHARLES Boson, a citizen of the United States, residing at New York, in the county of New York, State of New York, have invented certain new and useful Improvements in Door-Check Hinges; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a door check hinge."

An object of the invention is to provide a door hinge of such character that the door will be automatically closed and yet one by means of which the slamming of the door will be obviated. I

With this and other objects in view, such as will appear as the description progresses, my invention comprises the combination and arrangement of parts as herein set forth and subsequently claimed.

Referring to the drawing: Figure l is a perspective view of the hinge closed. Fig. 2 is a similar view, showing the hinge in open position. Fig. 3 is a longitudinal sectional view of the hinge in the position as shown in Fig. 1. Fig. 4 is a detail showing the plunger. Fig. 5 is a section on line 55 of Fig. 4. Fig. 6 is a section on line 66 of Fig. 3. Fig. 7 is a perspective view of a modification of my device, showing the same in its closed position. Fig. 8 is a similar view, showing the same in its open position. Fig.9 is a longitudinal sectional view. Fig. 10 is a horizontal sectional view of the form of the device shown in Fig. 8.

Referring to the drawing by reference characters wherein like parts are indicated by like characters throughout the several views: The device comprises a hinged plate 1 having an outwardly extendingtuloular socket member 2 which has internal helical grooves 3. Extending through this member thereon, which are slidable in the aforementioned grooves.

This rod extends considerably above and below the said member 2. A second hinged plate 6 is provided which Specification of Letters Eatent. Apr. 8,, figri5.

Serial-No. $59,929.

one end of which presses against the upper end of the casing 11 and the lower end of which presses against the upper end of the shaft i. Screwed on the lower member 8 and extending downwardly therefrom is a casing 13. The grooves 10 within the member 8 terminate a short distance above the lower edge of the said member as do the projections 5 on the rod 4. A packing ring 1& is screwed into a threaded aperture in the lower end of the member 8 below the grooves therein so that the rod 5 extends therethrough. On the lower end of this rod within the casing 10 is rotatably mounted a disk 15 having a plurality of holes 16 therethrough and a cap 17 loosely mounted on the lower end of the said rod, which cap has one hole therein registering with one of the holes 16 but closes the remaining holes. A tapered rod 18 extends upwardly through one of the holes 16 and the lower end of said rod is screw threaded, as at 19, and adjustably mounted in the lower end of the casing 13.- At a diametrically opposite point in. this casing is a fixed guide 20 which extends into a groove in the periphery of the disk 15. The casing 13 contains gylcerin or the like which when the hinge is closed is located below the disk 15.

The member 2 on the hinged plate 1 is secured to the rod 4 by a pin 21 so that when the hinge is in such position as disclosed in Fig. l, and the plate 1 which is fixed to the door is rotated the rod at is likewise rota;

by virtue of the engagement of the projections 5 with the internalgrooves 9 and 10. the said rod is raised and with it the hinged plate 1 and the door to which it is secured. This action compresses the spring 13- and raises the disk 15. /Vhen the door is re-- leased the weight thereof will naturally swing the door closed, but since there is considerable friction between the grooves in downwardly with the disk 15 and as the door approaches its closed position one of the holes 16 in which the rod 18 is" located passes down over this red- During the downward inovement of the disk the liquid in the casing 13 below the said disk is -forced upwardly through the hole 16 in ed hole 8. The upper end of this sleeve 7" which the rod 18 is located and the rapidity with which this liquid passes through the said hole is gradually decreased because of the fact that the hole is gradually closed by the tapered rod 18. ,Thus the motion of the plate 1 to which the door is attached is gradually arrested so that the door will be prevented from slamming. By making the rod 18 adjustable it is obvious that the motion may be arrested at different points for it may be some times desirable to arrest the motion of the door so that the hinged plates 1 and 6 will lie at angles to each other.

In the modified form of my. device as shown in Figs. 7 to 10 inclusive, the hinge comprises two plates 1 and 2 pivotally secured together. Formed on the upper end of the plate 2 is a sleeve 3 having a longitudinally extending hole 4 '-therethrough. At the lower end of this sleeve is formed a socket 5 having a semi-cylindrical wall 6'. On the lower end of the plate 1 is a sleeve 7 having a longitudinally extending threadterminates adjacent the lower. edge of the wall 6 of the socket 5 when the hinge is in its adjusted position.- A rod 9 is secured in the hole 4 of the socket 3 by screws 10'.. and extends downwardlv and is threaded be-- tweenits ends, as at 11 which threads engage in the threaded hole 8 of the sleeve 7.4. Formed on the lower endof the sleeve 7 is a downwardly extending externally threaded boss 12 on which is mounted a casing 13.

" against a circular plate 16 at 1ts lower end 16 by forming the same on the upper end of a screw 17- which is adjustable in a threaded hole 18 in the bottom of the casing 13 In. operation the plate ,1 is secured to thedoor and the plate 2 to the jamb. When the door is opened the sleeve 7 rides upwardly on the rod 9' and within the socket 5. At this time the spring 14 is extended and when the door is released gravity causes the door and plate 1 to move downwardly about the threads on the rod 9'. During this downward movement the spring 1a is compressed and finally to such an extent that the motion of the door is entirely arrested before the door slams.

In the preferred embodiment of my in-- vention it is necessary to bevel the top of the door to which it is attached-so as to allow the same to open while the lower end of the door may be made straight and will normally engage the floor or carpet thereon when closed, but immediately upon its openingwill be raised therefrom. The latter embodiment of my inventionis designed to beused on light doors such astoilet doors.

From the foregoing desciiption it may be seen that I have provided a hinge which will automatically close the door and yet one which will prevent the door from slam ming. 1

I do not wish. to be limited, to the particular embodiment f my invention shown, for it is, obvious that numerous changes may be made within the scope of the invention as defined by-the claims.

What is claimed is I 1. A device of the ciass described comprising, a hinged plate having a-n 'outwardly extending tubular member, helicalgrooves 1 member and projecting upwardly and downwardly therefrom, a second hinged plate having spaced tubular members mounted on said rod and having grooves therein engaging.= theprojections-thereon, a casing secured to' the upper end of the uppermost of the tubular members on the second hinged plate, a spring within said casing bearing against the endof the rod, a casing secured to the lowermost of the tubular, members on the second hinged plate, said rod extending into said casing and having a disk loosely mounted on the end thereof, said disk having'a plurality of holes therein and a groove'in its periphery, a guide extending into saidgroove, a tapered rod extending through one of said holes and adjustably mounted in the casing.

2. A device of the class described, a plate, a sleeve having an internal helical groove therein formed ou'said plate, a rod having a. helical projection thereon arranged to en." gage the groove in the sleeve, a second plate mountedon the rod in hinged relation the first mentioned plate, a casing on the lower end of the sleeve, means within the.

casing to retard the movement of the plates with'relation to eachbthe'r, and meansfer adjusting said first mentioned means.

3. A. device of theclass described, a plusol rality of hinge plates pivoted on a common In testimony whereof, I aflix my signarod, means on said rod for raising one plate ture, in the presence of two witnesses.

- with relation to the other during its pivotal Y movement, means to return the said plate CHARLES U 5 to its initial position, and means for vary- 1 Witnesses:

ing the stopping-point of the last mentioned ALBERT LAHz, plate. HENRY SAMPsoN.

Copies '0! this patent may be obtained for five cents each, by addressing the commissioner of Patents,

. v Washington, I). C. 1 

